Secondary battery.



110.836,10?. PATBNTED Nov. 20, 1906.

' L. H. FLANDERS.

SECONDARY BATTERY.

APPLICATION FILED AYPR.15.190'.

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LOUIS H. FLANDERS, OF WILKINSBURG, PENNSYLVANIA, ASSIGNOR l TO THE WESTINGHOUSE MACHINE COMPANY, A CORPORATION OF PENNSYLVANIA.

SECONDARY BATTERY.

Specification of Letters Patent.

Patented NOV. 20., 1906,.

T all whom, it may concern:

Be it known that I, Louis H. FLANDnRs, a

citizen of the United States, and a resident of Wilkinsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Secondary Batteries; of which the following is a specification.

This invention relates to secondary batteries, and more particularly to separators for said batteries.

The object of this invention is the produc.

tion of a simple and effective separator.

This and other objects I attain in a secondary battery embodyingthe features herein described, illustrated, a nd set forth.

In the drawings accompanying this appli-g cation and forming a part thereof, Figure 1 is a partial Irlierspectlve projection of a secondary cell, s owing a mode of assembling, lseparating,. and supporting the electrodes embodying this invention. Fig.- 2 is a perspective projection of an insulating-separator. Fig. 3is a partial section of the electrodes. of a secondary battery in connection with a partial elevation of a se arator.

' Referring to the rawings, the'two sets of electrodes 4 and 5 are supported on the W'all 6 of the containing-j ar by supporting lugs or hooksf7. Two such hooks are rigidly mounted to each plate or electrode, and each hook of the electrodes occur.4

is supplied with a downwardly-extending portion 8, which projects over the edge of the containing-j ar.. This prevents the lugs or supporting-hooks from sliding 0H the' supporting e ge and allowing the electrodes to drop into the jar when the cell is subjected .to vibrations or expansion or when buckling This construction permits considerable clearance to be maintained between the edges of the plates or electrodes andi-the ends of the Icontaining-jar.

On one of the hooks 7, connected to each of the electrodes, is a lug 9. The plates are so arranged in the jar that .the lug-carrying hooks on oppositely-charged electrodes are supported on opposite ends of the jar. The

, vpositively-charged set of plates 4 are integrally connected by the. lugs 9 to a connect.

ing-strap 10, which is supplied with a ortion Y 11, constituting the positive termina of the cell. The negative plates 5 are connected in the same manner by the lugs 17 to th connecting-strap 12 to'.which' the negative ter- Amina'l 13 is attached.

Insulating separator-rings 14,are placed on the positive electrodes. The insulatingrings will be as effective if mounted on the negative plate; but for the arrangement of plates illustrated it is more convenient to lace them on the positive electrode, as a fewer number are then needed.4 The separator-ring 14 is supplied with a prong 15 at the top of its inside edge which projects into a conveniently-located indentation 16 in the positive electrode. The indentation may be made by driving the prong 15 into the plate, if the plate is made of soft lead. This arrangement and mode of supporting vthe separator prevents it from being dis laced by the vibrations' or expansion Whic may takev place in the plate. The combination of this separator-ring with the plates, which are connected into two integra sets by the connecting-straps 10 and 12, produces a secondary cell in which there is slight tendency for motion or vibration of the plates and one in which the plates are effectively insulated.

1. In a secondary battery, a container, and

plates or electrodes in combination with a s aci vor insulating member encirclin said electrodes and provided with a pointed retaining-lug.

2. In a secondary battery, a container and plates or electrodes in combination with a spacing or insulating member arranged between said electrodes and provided with a downwardly-extending retaining-lug.

3. In a secondary battery, 'a container and plates or electrodes 1n combination with a spacing or insulating member comprising an encircling-ring provided at the top with a ldownwardly-eitending and pointed retain- 4. A separator for storage-battery electrodes comprisin van encirclinfr insulatingring provided Wit a downwardl -extending 'lug arranged to cooperate with a recess formed inthe electrode. 1- i In testimony whereof I have hereunto subscribed my name this 14th day ofA ril, 190.5.

LOUIS H. FLA DERS.

Witnesses:

DAVID WILLIAMS', JNO. SGREEN.'

IOO 

